Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Cash Flows [Abstract]
Payments to Acquire Businesses, Gross	$ 14,989	$ 21,826
Cash Flows from Operating Activities
Net income	11,915	17,297	$ 16,102
Adjustments to reconcile net earnings to net cash
Depreciation	1,887	1,224	1,076
Provision for loan losses	1,250	500	1,250
Stock compensation expense	385	200	151
Deferred income tax expense	4,076	(357)	190
Loans originated for sale	(16,248)	(10,593)	(4,762)
Proceeds from loans sold	16,747	11,425	4,606
Gain (Loss) on Sales of Loans, Net	(323)	(229)	(96)
Securities losses	14	(1,127)	(1,444)
Loss on disposal of assets	(133)	(946)	(24)
Write down of foreclosed properties	885	668	2,415
Amortization of securities premiums (accretion of discounts), net	4,190	4,325	5,131
Amortization (accretion) related to acquisitions, net	(1,051)	(44)	12
Amortization of intangibles	1,410	247	200
Decrease in accrued interest receivable	(1,102)	(254)	293
Increase in cash surrender value of bank owned life insurance	(707)	(1,059)	(1,032)
(Increase) decrease in other assets	668	(894)	(1,077)
Increase (decrease) in other liabilities	510	2,827	657
Net cash provided by operating activities	24,373	23,210	23,648
Cash Flows from Investing Activities
Proceeds from maturities and calls of securities available for sale	2,700	3,235	2,043
Proceeds from sales of securities available for sale	152,882	72,453	69,632
Principal payments received on securities available for sale	31,902	35,881	38,502
Purchases of securities available for sale	(148,174)	(99,497)	(113,677)
Purchases of other investments	(18,604)	(18,273)	(9,997)
Redemption of Federal Home Loan Bank Stock	15,932	14,066	7,231
Net principal payments received on loans	(61,104)	(170,716)	(63,359)
Purchases of premises and equipment	(6,185)	(1,857)	(2,588)
Proceeds from disposal of premises and equipment	0	43	0
Proceeds from sales of other repossessed assets & property held for sale	5,567	4,705	13,224
Cash Acquired from Acquisition	39,053	31,409	0
Net cash provided by (used in) investing activities	13,969	(128,551)	(58,989)
Cash Flows from Financing Activities
Net increase in demand deposit, NOW and savings accounts	48	78,462	28,487
Net decrease in time deposits	(45,261)	43,575	(23,125)
Net increase in short-term borrowings	18,729	53,068	47,761
Repayment of long-term borrowings	(918)	(28,911)	(1,909)
Repayments of Subordinated Debt	0	0	(16,800)
Net proceeds from issuance of common stock	10	101	4,772
Payments for Repurchase of Common Stock	0	0	(1,080)
Origination of Loans to Employee Stock Ownership Plans	0	0	(2,250)
Exercise of stock options	303	447	51
Payments of Ordinary Dividends, Common Stock	(5,238)	(4,272)	(3,398)
Dividends paid on preferred stock	0	0	(191)
Net cash provided by (used in) financing activities	(32,327)	142,470	32,318
Increase in cash and cash equivalents	6,015	37,129	(3,023)
Cash and cash equivalents:
Beginning	46,616	9,487	12,510
Ending	52,631	46,616	9,487
Cash payments for:
Interest	18,201	15,175	12,854
Income taxes	5,996	8,022	7,440
Supplemental Schedule of Noncash Investing and Financing Activities
Other assets acquired in settlement of loans	$ 430	$ 2,394	$ 2,622